CN101274345B - Metal casing forming method and rotary cutting apparatus using the same - Google Patents
Metal casing forming method and rotary cutting apparatus using the same Download PDFInfo
- Publication number
- CN101274345B CN101274345B CN2007102003409A CN200710200340A CN101274345B CN 101274345 B CN101274345 B CN 101274345B CN 2007102003409 A CN2007102003409 A CN 2007102003409A CN 200710200340 A CN200710200340 A CN 200710200340A CN 101274345 B CN101274345 B CN 101274345B
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- CN
- China
- Prior art keywords
- mould
- blade
- knife
- workpiece
- sidewall
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- Expired - Fee Related
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D51/00—Making hollow objects
- B21D51/16—Making hollow objects characterised by the use of the objects
- B21D51/54—Making hollow objects characterised by the use of the objects cartridge cases, e.g. for ammunition, for letter carriers in pneumatic-tube plants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/04—Processes
- Y10T83/0524—Plural cutting steps
Abstract
The invention discloses a metal shell molding method and a peeling device adopted by the method. The peeling device comprises an upper die and a lower die, the upper die is opposite to the lower die and can move toward the direction of the lower die, one side of the upper die that is opposite to the lower die is opened with a positioning cavity provided with an opening, the positioning cavity is surrounded and formed by a plurality of positioning walls that are sequentially connected, a knife opening is formed at an opening edge of each positioning wall, and the lower die comprises a plurality of blades that respectively correspond to a plurality of knife openings and are sequentially connected, wherein, a concave part is formed at a position of a blade that is adjacent to another blade, and a secondary blade is formed at the concave part. The peeling molding method can lead a nick of a mangled section to be positioned at the lateral wall of a working piece, thus having easy elimination.
Description
Technical field
The invention relates to the rotary cutting apparatus of a kind of metal casing forming method and employing thereof, especially about a kind of metal casing forming method of portable electron device and the rotary cutting apparatus of employing thereof.
Background technology
In recent years, metal shell is widely used in the portable electron devices such as MP3 player, personal digital assistant (PDA), mobile phone because it has characteristics such as intensity height, hardness is good, texture is good.
See also Fig. 1, it is a kind of metal shell 10 of portable electron device commonly used, it comprise an approximate rectangular bottom 11 and along the bottom 11 edges to the first side wall 12, second sidewall 13, the 3rd sidewall 14 and the 4th sidewall 15 that extend away from the direction of bottom 11.The first side wall 12, second sidewall 13, the 3rd sidewall 14 and the 4th sidewall 15 connect in turn, and form the cavity with an opening jointly with bottom 11.Cavity is in order to the holding electronic component body.
Above-mentioned metal shell 10 generally is to adopt drawing and forming to prepare with the mode that the rotary-cut moulding combines.See also Fig. 2, its be a stretched moulding of metallic plate workpiece 10 ', an approximate rectangular bottom 11 of workpiece 10 ' comprise ' and along 11 ' edge, bottom to away from bottom 11 ' the first side wall 12 that extends of direction ', second sidewall 13 ', the 3rd sidewall 14 ' with the 4th sidewall 15 '.The first side wall 12 ', second sidewall 13 ' ', the 3rd sidewall 14 ' with the 4th sidewall 15 ' be connected in turn, and the first side wall 12 ', second sidewall 13 ', the 3rd sidewall 14 ' with the 4th sidewall 15 ' with the cavity in bottom 11 ' form jointly with an opening.The first side wall 12 ', second sidewall 13 ', the 3rd sidewall 14 ' and the 4th sidewall 15 ' away from bottom 11 ' an end have respectively one outwards first scrap portion 121 of turnover ', second scrap portion 131 ', the 3rd scrap portion 141 ' and the 4th scrap portion 151 '.First scrap portion 121 ', second scrap portion 131 ', the 3rd scrap portion 141 ' and the 4th scrap portion 151 ' connect in turn.
In addition, see also Fig. 3, the rotary cutting apparatus 100 that it adopts when being a kind of existing metal casing forming.This rotary cutting apparatus 100 comprises a patrix 110, a counterdie 130 and a movable positioning plate 150.This patrix 110 and counterdie 130 relative and its can be towards the direction motion of this counterdie 130.Patrix 110 relative counterdie 130 1 sides offer a positioning chamber with an opening, and this positioning chamber is to be surrounded by four the first location wall 112, the second location wall 113, the 3rd location wall 114 and the 4th location walls 115 that connect in turn.The first location wall 112, the second location wall 113, the 3rd location wall 114 are formed with four first edge of a knife 1121, second edge of a knife 1131, the 3rd edge of a knife 1141 and four blade mouths 1151 that are connected in turn respectively with the edge of the 4th location wall 115.Counterdie 130 comprise can be respectively four first blade 132, second blade 133, three blade 134 and the four blade swords 135 that in turn are connected corresponding with first edge of a knife 1121, second edge of a knife 1131, the 3rd edge of a knife 1141 and four blade mouth 1151.Each blade 132,133,134 and 135 horizontal width are roughly the same with the horizontal width of the corresponding edge of a knife 1121,1131,1141 and 1151 respectively.
During operation, the workpiece 10 of rotary-cut ' place in the positioning chamber of patrix 110 will be needed, the shape of positioning chamber and size and workpiece 10 ' shape and size corresponding, workpiece 10 ' the first side wall 12 ', second sidewall 13 ', the 3rd sidewall 14 ' and the 4th sidewall 15 ' with corresponding first scrap portion 121 ', second scrap portion 131 ', the 3rd scrap portion 141 ' reach the 4th scrap portion 151 ' the junction lay respectively at first edge of a knife 1121, second edge of a knife 1131, the 3rd edge of a knife 1141 and four blade mouth 1151 places of patrix 110.Movable positioning plate 150 is arranged in the cavity of workpiece 10 ' to prevent that workpiece 10 ' from coming off from positioning chamber.
The vertical predetermined altitudes that descend of patrix 110, and make first edge of a knife 1121, second edge of a knife 1131, the 3rd edge of a knife 1141 and the four blade mouth 1151 of patrix 110 roughly be positioned at same horizontal level with first blade 132, second blade 133, the 3rd blade 134 and the four blade sword 135 of counterdie 130 respectively.Then, first blade 132 of counterdie 130 is at first towards first edge of a knife, 1121 horizontal movements of patrix 110, and make win blade 132 and 1121 actings in conjunction of first edge of a knife in workpiece 10 ' and with corresponding scrap portion 121 ' from corresponding side walls 12 ' excision.Then, second blade 133, the 3rd blade 134 and the four blade sword 135 of counterdie 130 more respectively in turn towards second edge of a knife 1131, the 3rd edge of a knife 1141 and 1151 horizontal movements of four blade mouth of patrix 110 and will corresponding second scrap portion 131 ', the 3rd scrap portion 141 ' reach the 4th scrap portion 151 ' from corresponding side walls 13 ', 14 ' with 15 ' excise.Then, by the side blow mould with the first side wall 12 ' part cut the interface interface 121 that is used to be provided with elements such as connector to set out, thereby make above-mentioned metal shell 10.
In the above-mentioned metal shell rotary-cut forming process, because first scrap portion 121 ', second scrap portion 131 ', the 3rd scrap portion 141 ' and the 4th scrap portion 151 ' connect in turn, 151 ' time of rotary-cut to the four scrap portion, waste material and workpiece finally break away from, promptly the final disengaging configuration of waste material and workpiece be positioned at the first side wall 12 ' with the 4th sidewall 15 ' junction.And waste material and workpiece are when finally breaking away from, because the junction waste material can be torn the section material production of product along with the motion of counterdie 130, make product with section that waste material finally separates on form the section of tearing and differ from breach, promptly the section of tearing difference breach be created on the first side wall 12 ' with the 4th sidewall 15 ' the junction, have a strong impact on product appearance, need to increase treatment process separately and eliminate.
Summary of the invention
In view of above content, be necessary to provide a kind of metal shell body forming method that the section of tearing difference breach is easily eliminated.
In addition, be necessary to provide a kind of rotary cutting apparatus of realizing the metal shell of above-mentioned metal shell body forming method.
A kind of metal casing forming method, it may further comprise the steps: a rotary cutting apparatus is provided, this rotary cutting apparatus comprises one first mould and one second mould, this first mould relative with second mould and its can be towards the motion of the direction of this second mould, the relative side with second mould of this first mould offers a positioning chamber with an opening, this positioning chamber is surrounded by a plurality of location walls that connect in turn, the edge of opening of each location wall is formed with an edge of a knife, this second mould comprises corresponding with a plurality of edges of a knife respectively a plurality of blades that connect in turn, and wherein the position of contiguous another blade of a blade is formed with a recess, and this recess place forms an auxiliary-blade; Workpiece is placed the positioning chamber of first mould, this workpiece comprise a bottom and along bottom margin to a plurality of sidewalls that extend away from the direction of bottom, these a plurality of sidewalls connect mutually in turn, each sidewall has an outwards scrap portion of turnover respectively away from an end of bottom, the scrap portion of these a plurality of sidewalls connects in turn, these a plurality of sidewalls a plurality of location wall with first mould respectively are corresponding, and the junction of a plurality of sidewall and scrap portion lays respectively at the knife-edge part of corresponding first mould; First mould moves towards the direction of second mould, and makes a plurality of edges of a knife of the mould of winning and a plurality of blades of second mould lay respectively at same plane; A plurality of blade self-formings of this second mould have the blade of recess to begin, respectively towards corresponding first mold notch motion, a plurality of blades of second mould and a plurality of edges of a knife of first mould are jointly to the workpiece application of force and with the preliminary rotary-cut of workpiece, and the blade that is formed with recess only cuts the subregion of corresponding workpiece sidewall and scrap portion junction; The second mould blade that is formed with recess is once more to corresponding first mold notch motion, and by auxiliary-blade and corresponding edge of a knife acting in conjunction in workpiece, and the remainder of corresponding scrap portion is excised from sidewall.
A kind of rotary cutting apparatus, this rotary cutting apparatus comprises one first mould and one second mould, this first mould relative with second mould and its can be towards the motion of the direction of this second mould, the relative side with second mould of this first mould offers a positioning chamber with an opening, this positioning chamber is surrounded by a plurality of location walls that connect in turn, the edge of opening of each location wall is formed with an edge of a knife, this second mould comprises corresponding with a plurality of edges of a knife respectively a plurality of blades that connect in turn, wherein the position of contiguous another blade of a blade is formed with a recess, and this recess place forms an auxiliary-blade.
Compared with prior art, in described rotary cutting apparatus, because the position of contiguous another blade of a wherein blade of second mould is formed with recess, this recess place is formed with auxiliary-blade, when the corresponding edge of a knife moved, the workpiece sidewall of recess correspondence and the subregion of scrap portion junction were not completely severed this blade for the first time.After treating that all the other sidewalls of workpiece are cut successively by other blade, the blade that is formed with recess cuts towards corresponding edge of a knife motion and by the remainder of auxiliary-blade with respective side walls and scrap portion junction once more, makes waste material excise from workpiece fully.Like this, the final position that breaks away from of waste material and workpiece is positioned on the at first cropped sidewall, and promptly the section of tearing difference breach is formed on the at first cropped sidewall.And general portable electron device object needs in its at least one sidewall the interface interface to be set usually, therefore metal shell can will have the cutting of sidewall sections that the section of tearing differs from breach by the side blow mould, when forming needed interface interface and with the elimination of the section of tearing difference breach, need not to increase independent treatment process and just improved product quality.
Description of drawings
Fig. 1 is the schematic perspective view of common metal housing.
Fig. 2 is the schematic perspective view of the workpiece of drawing and forming.
Fig. 3 is the schematic diagram of the rotary cutting apparatus of prior art metal shell body forming method employing.
Fig. 4 is the schematic diagram of the rotary cutting apparatus that adopts of the metal shell body forming method of better embodiment of the present invention.
Fig. 5 is the schematic perspective view of the workpiece of better embodiment of the present invention.
Fig. 6 is the generalized section of rotary cutting apparatus rotary-cut drawing and forming workpiece shown in Figure 4.
The specific embodiment
Rotary cutting apparatus of the present invention can be used for the rotary-cut moulding of all kinds of metal shells.In this better embodiment, be that example describes with the metal shell body forming method and the rotary cutting apparatus thereof of aluminum alloy material.
See also Fig. 4, this metal shell body forming method is to realize by a rotary cutting apparatus 200.Rotary cutting apparatus 200 comprises a patrix 210, a counterdie 230 and a movable positioning plate 250.Patrix 210 and counterdie 230 relative and its can be towards the direction motion of this counterdie 230.Patrix 210 relative counterdie 230 1 sides offer a positioning chamber with an opening, and its size is slightly larger than movable positioning plate 250.Positioning chamber is surrounded by four the first location wall 212, the second location wall 213, the 3rd location wall 214 and the 4th location walls 215 that connect in turn.The first location wall 212, the second location wall 213, the 3rd location wall 214 are formed with four first edge of a knife 2121, second edge of a knife 2131, the 3rd edge of a knife 2141 and four blade mouths 2151 that are connected in turn respectively with the edge of opening place of the 4th location wall 215.Counterdie 230 comprises four first blade 232, second blade 233, the 3rd blade 234 and four blade swords 235 that are connected in turn that can be respectively match with four edges of a knife 2121,2131,2141 and 2151, and the position of first blade, 232 contiguous four blade swords 235 is formed with a recess 2321.This recess 2321 can form by the mode of counterdie 230 edges formation groove.And this groove can comprise a sidewall 2322, and these sidewall 2322 edges can form an arc auxiliary-blade 2323.
Above-mentioned rotary cutting apparatus 200 can be used for the rotary-cut of the scrap portion of the workpiece that the metallic plate pull and stretch forms, and sees also Fig. 5, and it is the schematic diagram of the workpiece that forms of metallic plate pull and stretch.Workpiece 20 comprise an approximate rectangular bottom 21 and along the bottom 21 edges to the first side wall 22, second sidewall 23, the 3rd sidewall 24 and the 4th sidewall 25 that extend away from the direction of bottom 21.The first side wall 22, second sidewall 23, the 3rd sidewall 24 and the 4th sidewall 25 connect mutually in turn.Cavity of the first side wall 22, second sidewall 23, the 3rd sidewall 24 and the 4th sidewall 25 and bottom 21 common formation with an opening.The first side wall 22, second sidewall 23, the 3rd sidewall 24 and the 4th sidewall 25 have outwards first scrap portion 221, second scrap portion 231, the 3rd scrap portion 241 and the 4th scrap portion 251 of turnover respectively away from an end of bottom 21.This first scrap portion 221, second scrap portion 231, the 3rd scrap portion 241 and the 4th scrap portion 251 connect in turn.The shape of the positioning chamber of patrix 210 and size are corresponding with the shape and the size of workpiece 20.
During operation, workpiece 20 is placed in the positioning chamber of patrix 210, and make the first side wall 22, second sidewall 23, the 3rd sidewall 24 of workpiece 20 and the 4th sidewall 25 and the junction of corresponding first scrap portion 221, second scrap portion 231, the 3rd scrap portion 241 and the 4th scrap portion 251 lay respectively at first edge of a knife 2121, second edge of a knife 2131, the 3rd edge of a knife 2141 and four blade mouth 2151 places of patrix 210.Movable positioning plate 250 is arranged in the cavity of workpiece 20, in the positioning chamber of patrix 210, comes off to prevent workpiece 20.The vertical predetermined altitudes that descend of patrix 210, and make first edge of a knife 2121, second edge of a knife 2131, the 3rd edge of a knife 2141 and the four blade mouth 2151 of patrix 210 roughly be positioned at same horizontal level with first blade 232, second blade 233, the 3rd blade 234 and the four blade sword 235 of counterdie 230 respectively.
Because the position of first blade, 232 contiguous four blade swords 235 is formed with recess 2321, first blade 232 is in the time of the motion of first edge of a knife 2121, and first blade 232 can only cut the subregion of the junction of the first side wall 22 of corresponding workpiece 20 and first scrap portion 221.Like this, treat that workpiece 20 is cut successively by first blade 232, second blade 233, the 3rd blade 234 and four blade sword 235 after, the first side wall 22 is not completely severed with the subregion of the junction of corresponding scrap portion 221.When first blade 232 of counterdie 230 once more towards first edge of a knife, 2121 horizontal movements of patrix 210, and the auxiliary-blade 2333 by recess 2321 correspondences and 2121 actings in conjunction of first edge of a knife are excised the remainder of corresponding scrap portion 221 in workpiece 20 from sidewall 22.The final position that breaks away from of waste material and workpiece is positioned at the junction that the first side wall 22 is cut for twice, and promptly the section of tearing differs from breach and is formed on the first side wall 22.Because of the first side wall 22 generally need be offered an interface interface that is used to be provided with elements such as connector, to have the cutting of sidewall sections that the section of tearing differs from breach by side blow mould (figure do not show), eliminate when forming the interface interface that needs and with the section of tearing difference breach, need not to increase independent treatment process and just improved product quality.
Be appreciated that in the metal shell body forming method of the present invention that the sidewall of workpiece can be three, also can be more than five or five.Correspondingly be that the quantity of the edge of a knife of the patrix of rotary cutting apparatus and the blade of counterdie also can be done corresponding variation, as long as the edge of a knife of patrix is corresponding with the sidewall quantity of workpiece with the quantity of the blade of counterdie.In addition, recess also can be an inclined-plane, and the shape of auxiliary-blade also can be other shapes such as ellipse or linear except that can be arc.
Be appreciated that after the metal shell rotary-cut is finished the process of the shaping of can polishing is to obtain better surface quality.
Claims (10)
1. metal casing forming method, it may further comprise the steps:
One rotary cutting apparatus is provided, this rotary cutting apparatus comprises one first mould and one second mould, this first mould relative with second mould and its can be towards the motion of the direction of this second mould, the relative side with second mould of this first mould offers a positioning chamber with an opening, this positioning chamber is surrounded by a plurality of location walls that connect in turn, the edge of opening of each location wall is formed with an edge of a knife, this second mould comprises corresponding with a plurality of edges of a knife respectively a plurality of blades that connect in turn, and wherein the position of contiguous another blade of a blade is formed with a recess, and this recess place forms an auxiliary-blade;
Workpiece is placed the positioning chamber of first mould, this workpiece comprise a bottom and along bottom margin to a plurality of sidewalls that extend away from the direction of bottom, these a plurality of sidewalls connect mutually in turn, each sidewall has an outwards scrap portion of turnover respectively away from an end of bottom, the scrap portion of these a plurality of sidewalls connects in turn, these a plurality of sidewalls a plurality of location wall with first mould respectively are corresponding, and the junction of a plurality of sidewall and scrap portion lays respectively at the knife-edge part of corresponding first mould;
First mould moves towards the direction of second mould, and makes a plurality of edges of a knife of the mould of winning and a plurality of blades of second mould lay respectively at same plane;
A plurality of blade self-formings of this second mould have the blade of recess to begin, respectively towards corresponding first mold notch motion, a plurality of blades of second mould and a plurality of edges of a knife of first mould are jointly to the workpiece application of force and with the preliminary rotary-cut of workpiece, and the blade that is formed with recess only cuts the subregion of corresponding workpiece sidewall and scrap portion junction;
The second mould blade that is formed with recess is once more to corresponding first mold notch motion, and by auxiliary-blade and corresponding edge of a knife acting in conjunction in workpiece, and the remainder of corresponding scrap portion is excised from sidewall.
2. metal casing forming method as claimed in claim 1 is characterized in that: this auxiliary-blade is an arc.
3. metal casing forming method as claimed in claim 1 is characterized in that: this rotary cutting apparatus comprises that also one is used for workpiece is fixed in movable positioning plate in the positioning chamber of first mould.
4. metal casing forming method as claimed in claim 1 is characterized in that: this first mould comprises four edges of a knife, and this second mould comprises respectively and four four blades that the edge of a knife is corresponding.
5. metal casing forming method as claimed in claim 1, it is characterized in that: this forming method also comprises a side blow step, one sidewall of the workpiece after the scrap portion that this side blow step is used for die-cut workpiece is cropped, this sidewall cuts through the blade secondary with recess.
6. metal casing forming method as claimed in claim 1 is characterized in that: this workpiece material is an aluminium.
7. rotary cutting apparatus, this rotary cutting apparatus comprises one first mould and one second mould, this first mould relative with second mould and its can be towards the motion of the direction of this second mould, the relative side with second mould of this first mould offers a positioning chamber with an opening, this positioning chamber is surrounded by a plurality of location walls that connect in turn, the edge of opening of each location wall is formed with an edge of a knife, this second mould comprises corresponding with a plurality of edges of a knife respectively a plurality of blades that connect in turn, it is characterized in that: wherein the position of contiguous another blade of a blade is formed with a recess, and this recess place forms an auxiliary-blade.
8. rotary cutting apparatus as claimed in claim 7 is characterized in that: this auxiliary-blade is an arc.
9. rotary cutting apparatus as claimed in claim 7 is characterized in that: this rotary cutting apparatus comprises that also one is used for workpiece is fixed in movable positioning plate in the positioning chamber of first mould.
10. rotary cutting apparatus as claimed in claim 7 is characterized in that: this first mould comprises four edges of a knife, and this second mould comprises respectively and four four blades that the edge of a knife is corresponding.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102003409A CN101274345B (en) | 2007-03-28 | 2007-03-28 | Metal casing forming method and rotary cutting apparatus using the same |
| US11/944,464 US8297100B2 (en) | 2007-03-28 | 2007-11-23 | Method and apparatus for making metallic casing |
| US13/628,205 US8621907B2 (en) | 2007-03-28 | 2012-09-27 | Method for making metallic casing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007102003409A CN101274345B (en) | 2007-03-28 | 2007-03-28 | Metal casing forming method and rotary cutting apparatus using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101274345A CN101274345A (en) | 2008-10-01 |
| CN101274345B true CN101274345B (en) | 2011-12-21 |
Family
ID=39792005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007102003409A Expired - Fee Related CN101274345B (en) | 2007-03-28 | 2007-03-28 | Metal casing forming method and rotary cutting apparatus using the same |
Country Status (2)
| Country | Link |
|---|---|
| US (2) | US8297100B2 (en) |
| CN (1) | CN101274345B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101754624B (en) * | 2008-12-19 | 2012-07-25 | 鸿富锦精密工业（深圳）有限公司 | Metal shell body and forming method thereof |
| CN101862776B (en) * | 2009-04-17 | 2013-06-05 | 富准精密工业(深圳)有限公司 | Shell of electronic device and manufacturing method thereof |
| CN103084461B (en) * | 2012-07-27 | 2015-06-10 | 黄开强 | Flat edge-trimming machine |
| EP3231527B1 (en) | 2014-12-10 | 2021-03-24 | Nippon Steel Corporation | Blank, die assembly and method for producing a blank |
| CN107745032A (en) * | 2017-11-14 | 2018-03-02 | 深圳市强浪机械设备有限公司 | Double plate edge cutting machines |
| CN107931402B (en) * | 2017-11-14 | 2019-12-20 | 深圳市强浪机械设备有限公司 | Rotary edge trimmer and working control method and device thereof |
| CN107913934B (en) * | 2017-11-14 | 2019-12-20 | 深圳市强浪机械设备有限公司 | Edge cutting method for workpiece edge material |
| CN108687216A (en) * | 2018-05-16 | 2018-10-23 | 深圳市强浪机械设备有限公司 | A kind of horizontal edge-trimming machine |
| CN108672544A (en) * | 2018-05-16 | 2018-10-19 | 深圳市强浪机械设备有限公司 | A kind of horizontal edge-trimming machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0043389A1 (en) * | 1980-07-08 | 1982-01-13 | Feintool AG Lyss | Tool and method for precision cutting |
| CN1038604A (en) * | 1989-04-25 | 1990-01-10 | 山东省荣成拖拉机厂 | The tractor frame punching also obtains machining parts |
| CN1143547A (en) * | 1996-05-22 | 1997-02-26 | 南昌航空工业学院 | Punching technique of slotting and cutting-off for side wall of rectangular tubing |
| CN1398687A (en) * | 2001-07-25 | 2003-02-26 | 三一重工股份有限公司 | Large-size case machining process |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1279751A (en) * | 1918-02-07 | 1918-09-24 | Thomas O'toole | Power-hammer die. |
| JP4616638B2 (en) * | 2004-12-24 | 2011-01-19 | 古河スカイ株式会社 | Small electronic housing and manufacturing method thereof |
-
2007
- 2007-03-28 CN CN2007102003409A patent/CN101274345B/en not_active Expired - Fee Related
- 2007-11-23 US US11/944,464 patent/US8297100B2/en active Active
-
2012
- 2012-09-27 US US13/628,205 patent/US8621907B2/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0043389A1 (en) * | 1980-07-08 | 1982-01-13 | Feintool AG Lyss | Tool and method for precision cutting |
| CN1038604A (en) * | 1989-04-25 | 1990-01-10 | 山东省荣成拖拉机厂 | The tractor frame punching also obtains machining parts |
| CN1143547A (en) * | 1996-05-22 | 1997-02-26 | 南昌航空工业学院 | Punching technique of slotting and cutting-off for side wall of rectangular tubing |
| CN1398687A (en) * | 2001-07-25 | 2003-02-26 | 三一重工股份有限公司 | Large-size case machining process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101274345A (en) | 2008-10-01 |
| US8621907B2 (en) | 2014-01-07 |
| US20080236238A1 (en) | 2008-10-02 |
| US20130019727A1 (en) | 2013-01-24 |
| US8297100B2 (en) | 2012-10-30 |
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